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| Number | Title | Issue Date |
| 7371494 | Magnetic toner and method of manufacturing magnetic toner The present invention provides a magnetic toner which is hardly influenced by an environment, and with which an image with high quality and excellent resolution can be stably even under low humidity. In the magnetic toner of present invention: ... | 05/13/2008 |
| 7361441 | Color toner, and full-color image-forming method A yellow toner in which, in a spectral-distribution diagram in which the reflectance (%) is plotted as ordinate and the wavelength (nm) as abscissa, the reflectance determined for a toner in a state of powder ranges from 15% to 20% at a wavelength of 500 nm and rang... | 04/22/2008 |
| 7351509 | Toner A toner is disclosed including toner particles containing a binder resin and a colorant. The binder resin contains a vinyl resin. In the high-temperature GPC-RALLS-viscometer analysis of the o-dichlorobenzene-soluble matter of the toner, a weight-average molecular w... | 04/01/2008 |
| 7341813 | Electrophotographic photoreceptor, electrophotographic member, process cartridge and image forming apparatus The present invention provides an electrophotographic photoreceptor and an electrophotographic member, which have superior mold releasing and sliding properties and are able to maintain these properties over long periods of time, the photoreceptor comprising a first... | 03/11/2008 |
| 7336918 | Image forming device having a drum separation device A separation device 16, which is located downstream from a transfer roller in the sheet transport direction, applies a separation voltage to a plurality of separation needles 17 disposed in an alignment orthogonal to the direction of transport of the s... | 02/26/2008 |
| 7316876 | Electrophotographic photoreceptor and a manufacturing method thereof Disclosed is an electrophotographic photoreceptor which comprises a layer on a support, wherein the photoreceptor satisfies a condition represented by Formulas 1 and 2; 0 | 01/08/2008 |
| 7288351 | Magenta toner for developing electrostatic images, process for production thereof, developer and image-forming method A magenta toner for developing electrostatic images provided which contains a binder resin and a colorant, wherein the colorant includes a mixed crystal of two or more colorants and when a solid patch is fixed on art paper complying with the ISO standard by using th... | 10/30/2007 |
| 7288348 | Color toner In a color toner having toner particles which have toner base particles containing a binder resin, a colorant and a wax, and inorganic fine particles, (i) in the toner base particles, particles having a circle-equivalent diameter of 3.00 μm or more as measured with... | 10/30/2007 |
| 7272355 | Cleaning device for image forming apparatus A cleaning device is disposed substantially vertical above a photosensitive drum for the purpose of constructing a compact electrophotographic printer. The cleaning device includes a housing that accommodates an auxiliary toner conveying part and a sheet-like resili... | 09/18/2007 |
| 7261991 | Image forming method and image forming apparatus An image forming method, comprising the steps of: charging a organic photoreceptor having a specific layer including at least a photosensitive layer; forming an electrostatic latent image on the organic photoreceptor; developing the electrostatic latent image to for... | 08/28/2007 |
| 7241547 | Toner, method for forming image using the toner, and process cartridge A toner exhibits excellent image characteristics, and also has an excellent charging property even if the toner is used in a cleaning-simultaneous-with-developing system having a direct injection charging mechanism. The toner includes toner particles and non-magneti... | 07/10/2007 |
| 7232635 | Image forming method, image forming apparatus, and processing cartridge A method of forming a toner image employing a photoreceptor is described. The photoreceptor comprises a photosensitive layer on a cylindrical conductive substrate, Formula (1) and Formula (2) are held, 0 | 06/19/2007 |
| 7229729 | Electrophotographic photoreceptor, process cartridge, image forming apparatus and image forming method An electrophotographic photoreceptor having an intermediate layer in which the intermediate layer contains a compound formed from a composition containing the following components X, Y and Z. Component X: Inorganic oxide network fo... | 06/12/2007 |
| 7229727 | Color toner, and full-color image forming method A yellow toner in which, in a spectral-distribution diagram in which the reflectance (%) is plotted as ordinate and the. wavelength (nm) as abscissa, the reflectance determined for a toner in a state of powder ranges from 15% to 20% at a wavelength of 500 nm and ran... | 06/12/2007 |
| 7218886 | Method and kit for removing a residue from an imaging member A method for removing a residue, such as lateral charge migration (LCM) film, from an imaging member includes contacting at least a portion of the imaging member with a wash liquid capable of removing the residue. The wash liquid containing the residue is then remov... | 05/15/2007 |
| 7214459 | Toner for developing electrostatic charged images and developer for developing electrostatic charged images, and image forming method using the same The invention provides a toner for developing electrostatic charged images comprising toner mother particles containing a binder resin and a colorant, and an external additive, wherein: the average of shape factors SF1 of the toner mother particles represente... | 05/08/2007 |
| 7205671 | Semiconductor device A semiconductor device has peripheral electrode pads formed on the periphery of a semiconductor chip, land pads comprising the first land pads and the second land pads formed on the semiconductor chip, and circuits formed in the semiconductor chip. The peripheral el... | 04/17/2007 |
| 7202005 | Image forming method and an image forming apparatus Disclosed is an image forming method comprising: developing a latent image formed on a cylindrical electrophotographic photoreceptor having a cylindricity of 5 to 40 μm, with a developer comprising a toner sufficing at least one of conditions (1) to (5): | 04/10/2007 |
| 7183035 | Image forming method An image forming method having: developing a latent image formed on a cylindrical electrophotographic photoreceptor having a cylindricity of 5 to 40 μm, with a developer comprising a toner which comprises a ratio Dv50/Dp50 of a 50% volume particle diameter Dv50 to ... | 02/27/2007 |
| 7183034 | Image forming method, image forming apparatus and toner cartridge The present invention provides a tandem-type image forming method using a trickle developing system, wherein the average circularity of a toner contained in at least a supplementary developer used for appropriately supplying a developer to a developing device is in ... | 02/27/2007 |
| 7179577 | Carrier for developer for developing electrostatic latent image, image forming method using same and image forming apparatus using same A carrier for an image developer for electrophotography, including core particles, and a coating layer covering each of the core particles, wherein the core particles have a weight average particle diameter of Dv which is 25–45 μm and a number average particle di... | 02/20/2007 |
| 7171152 | Image-forming apparatus and image-forming method An image-forming apparatus with multiple toner image-forming units that form toner images by developing electrostatic latent images by means of a developer containing a nonmagnetic toner and a magnetic carrier. Each of the toner image-forming units has a photorecept... | 01/30/2007 |
| 7166403 | Toner, developer, image developing apparatus, and image forming apparatus A toner capable of making compatible a transferring property, a fixing property and a cleaning property and forming a high-precision image. The toner comprises a binder resin and a colorant and is characterized in that the average circularity of the toner is at leas... | 01/23/2007 |
| 7160662 | Electrostatic latent image developing agent and image forming method The present invention relates to an image forming method including: a charging step; an electrostatic latent image forming step; a developing step; a transfer step; a fixing step; and a cleaning step, wherein an electrostatic latent image developing agent comprises ... | 01/09/2007 |
| 7153621 | Electrophotographic photoreceptor and image forming apparatus using the photoreceptor An electrophotographic photoreceptor including a photosensitive layer on an electroconductive substrate, wherein nitrate ion is present on the surface of the photosensitive layer in an amount of from 50 to 300 μg per 1 m2 of the surface of the photosensi... | 12/26/2006 |
| 7151904 | Conductive member and process cartridge and image forming apparatus using the same A conductive member includes a conductive supporting body, an electric resistance adjusting layer disposed on a surface of the conductive supporting body, and a space adjusting mechanism including a material different from the electric resistance adjusting layer, wh... | 12/19/2006 |
| 7150953 | Developer A developer capable of providing an excellent image without causing a charging failure even after a long-term and repeated use contains a toner particle having a binder resin and a colorant, an inorganic fine particle, and a conductive fine particle, in which a volu... | 12/19/2006 |
| 7149465 | Cleaning unit, process cartridge, image forming apparatus, and toner A cleaning unit includes a cleaning blade that cleans toner on an image carrier and a brush-shaped roller that applies a lubricant of a molded lubricant on the image carrier. The brush-shaped roller is insulative, and delivers the toner cleaned by the cleaning blade... | 12/12/2006 |
| 7144607 | Liquid crystal orientation agents and liquid crystal display device with the use thereof A polyimide-containing liquid crystal alignment treating agent having a structure of the formula (I) incorporated therein, wherein Q is a single bond or a divalent organic group, R1 to R4 re... | 12/05/2006 |
| 7141344 | Electrostatic image developer and image-forming process An image-forming process, which comprises steps of developing an electrostatic latent image on an inorganic photoreceptor with an electrostatic image developer containing 0.1 to 5.0% by weight, based on the toner particles, of silicon carbide fine powder of 0.2 to 1... | 11/28/2006 |
| 7138215 | Process cartridge, image forming apparatus and image forming method The present invention provides a process cartridge that is freely attachable to and detachable from a main body of an image forming apparatus and that includes a latent image bearing body and a developing device having a developer storage space for storing a develop... | 11/21/2006 |
| 7139503 | Cleaning apparatus with conductive member A cleaning apparatus includes a brush member to be brought into contact with a member to be cleaned to remove toner particles attached to the member. The brush member includes a conductive material. ... | 11/21/2006 |
| 7130564 | Method and apparatus for image forming capable of removing residual toner without using a toner cleaning system, process cartridge for use in the apparatus and toner used for the image forming An image forming apparatus includes an image bearing member configured to form an electrostatic latent image on a surface thereof, and a separating mechanism configured to separate an irregular charge toner from a residual toner remaining on the surface of the image... | 10/31/2006 |
| 7122283 | Photoconductive members A photoconductive member containing, for example, a substrate, a photogenerating layer, a charge transport layer and an overcoat layer wherein the overcoat layer is comprised of a crosslinked siloxane composite containing a caprolactone-siloxane. ... | 10/17/2006 |
| 7114437 | Method and apparatus for shifting a doctor blade A method for shifting a doctor blade in its longitudinal direction, the doctor blade being set against a cylinder of a printing machine, wherein the shift movement of the doctor blade is such that, for most of the time of the print operation, the shift velocity of t... | 10/03/2006 |
| 7110699 | Image forming apparatus and process cartridge for use in the same An image forming apparatus of the present invention includes a sheet affixed at one edge portion and including a flat surface in the other edge portion. The flat surface is formed with a plurality of grooves each extending over the image forming range of a photocond... | 09/19/2006 |
| 7101648 | Image forming method and image forming apparatus An image forming method is disclosed, in which a toner image on an organic photoreceptor developed by a two-component is primarily transferred to an intermediate transferring member, and secondarily transferred to a recording material, and a toner remained on the or... | 09/05/2006 |
| 7078138 | Apparatus and method for forming image forming An electrostatic image forming apparatus is disclosed. The image forming apparatus contains a toner used in the developing means having saturated moisture content at a temperature of 30° C. and a relative humidity of 80% of within the range of from 0.1 to 2.0% by w... | 07/18/2006 |
| 7078142 | Image forming method An image forming method is disclosed. The method comprises processes in which a latent image on an electrophotographic photoreceptor is developed employing a developer material, and after transferring the visualized toner image to a recording material, the remaining... | 07/18/2006 |
| 7074540 | Image forming apparatus An image forming apparatus is capable of performing image formation at a processing speed of not lower than 150 mm/s. An electrophotographic photoreceptor comprises a surface layer containing a siloxane-bases resin having charge-transporting properties and a crossli... | 07/11/2006 |
